Perley l



P. 1L. KIMBALL.

SPEED INDICATOR.

APPLICATION FILED IuNE Is. IaIs.

1 3 1 3, 389 Patented Aug. 19, 1919;

I Zwenrf gm" @y JMW UNITED y STATES PATENT OFFICE.

PERLEY I.. KIMBALL, or :BELLoWs FALLS, VERMONT, AssIGNoR To' THE VERMONTFARM MACHINE COMPANY, or :BELLows FALLS,- VERMONT, A yc'zotroitnfrIoN orVERMONT. f

SPEED-INDICATQR.

1,313,389.k l specieation ofrettersratem. Patented Aug. 19, 1919;

Application led il'une 18, 1919. Serial No. 305,112.

To all wkomrz'tmay concern.' l

Be it known that I, PERLEY L. KIMfnAVIlL,,y a citizen of the UnitedStates, residlng at Bellows Falls,

in the4 county of Windham and State of Vermont, have invented a cer-`tain new and useful Improvement in Speed- Indicators, of which thefollowing is a full,

clear, and exact description. v

This invention relates t0 audible speed iiidicators, for. use onmachines4 where it is desirable to maintain a given speed l'and toaudibly apprise the operator either when. the speed fis exceeded orunduly Vdimlni'shed y r and while the present invention is primarilystantially ona line or in a plane with vthey designed for use inconnection with centrifugal cream separators, it is tofbe understoodthat its use is not'- so limited.

`In Vspeedindicators of the character in question, it is common to useay bell or 'gong having a gravity striker, such as a metal ball, soarranged that when the machine 'to y whichthe device is applied isrunning below normal, 't will sound an alarm,y while lremaining silentat other times.

Thepresent invention is 1n the nature of an 4,improvement on the speedindicator forming the subject of my case filed October`3, 1918, SerialNo. 256,662, and the invention consists in certain structural andoperativefeatures whereby the efficiency of the indicator is enhanced,same comprising a novelconstruction and arrangement of they b'all`scoops .or cups, and the offsetting of into which the ball scoops orcupsextend so that' theirinner surfaces willco'me subinner surface ofthe rim of the bell at the ends ofJ the scoops ?0r cups, thereby making.

a smooth even floor for'the balljto rollover, andmeans to interlockthebell rand scoops or cups to prevent independent movement thereof, asI will and iinallyclaim.

v In the accompanyingl, drawings illustrating the invention, in t eseveral figures of which like parts are similarly designated, Figure 1is a sectional elevation showing the indicator applied to` the endl of arotary shaft, the section of the bell being taken substantially in theplane of line I `-I of Fig. 2. Fig. 2 is a rear elevatlon wlth theback-plate removed. Fi 3 isa transverse section taken substantial y i.inthe plane vof proceed now to explain 1in@ 111411, Fig. 2, but invertedwith re'- lation to Fig. 2. Fig. .Lis asectionalf eleva'- f tion ofthesilencer yscoop or cup, and Fig.

. 5 is a topV plany view thereof. Fig. 6 is a ktransverse sectionlshowing the details of connection rof ythe-arms withE thescoop or cupof F 1g. 3.

The bell or gong 1 is acup-shaped 'strucexcepting that its .n

ball scoops ,or `cups 5 and 6, and of such depth and ywith the scoops soarranged scoops will. besubst'antially in line or on a level with theremainder of the rim and so that when the striker 0r ball rolls o yofthe scoop or cup o nt'o the rim, it'willy do so on a level andwithoutunnecessary jar. TheV scoop `or cup 5 has the lateralball-confining flanges 7, and ,its ends are provided with V-shapednotches 8, as shown more in detail in Fig. 3, the apexes'of the notchespomtmg toward thecenter lof the scoop or cup. These notches cause theball to roll toward and strike, into the center of the radial groove 9of a center block 10 ap ing to rest withiny the scoop. As will be seen,the scoop or cup is a segment of a circle, `Whose center is the axis ofthe bell. The block 10 isa frustum of a pyramid, the Aopposite faces ofwhich are provided with' the grooves 9.I These grooves, as al# readyintimated, serve to centerV the striker or ball and Iassist in itsproper escape from the scoop or cu in the revolution of 'the bell. jy Inthe pre erred construction the block is a separate piece, machinedallover, and heldin rigid relation` to the scoop 'or cup by means of thearms 11 and 1,2, thelower ends of which are made `with tenons 13 l'and14' socketed in the. 'sides of the block, pas' shown in Fig. 6and theends of these tenons extend through the scoop or cup and are clenched onthev outside, las shown in Figs. 1,'2 and l.v kThis makes la very firmand accurate holding y,of both the cup and the block. The separate blockhas ythe further.

plied to the scoop or cup, and thereby the ball, 1s prevented frombobbing about before com?" therein that the oppositey surfaces of the.

1,313Qss9 a' porting the same, a. bell, and tongues on one rigidlyattachedtothe opposite ends of said of the scoop-supporting arms rigidlyenf arms, and ball engaging surfaces substangaging holes in said bell.tially level with those portions of the hell 9. In a speed indicator ofthe bell and ball between the offsets. 15 5 variety, a lbell having anoffset in its rim, In testimony whereof I have hereunto set and a ballscoop or cup rigidly supported my hand this 16th day of June A. D. 1919.in said offset.

10. A speed indicator of the bell and ball A PERLEY L' KIMBALL' variety,having a rimmed bell provided with Witnesses: v 10 opposite oi'sets inits rim, arms rigidly M. J. PIKE,

connected with said bell, ball scoops or cups L. A. PILLSBURY.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

